[Z06] Valve spring replacement mileage?

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Mar 13, 2015 | 12:23 AM

Tom400CFI

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Team Owner

Joined: Aug 2004

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From: Park City Utah

Valve spring replacement mileage?

Yes, I did a search. Didn't find anything other than people replace valve springs for PM.

Wife has an '05 CTS-V (with an LS6) that she DD's to work with. I drive it occasionally an that is the only time the engine goes over 3500 RPM. Car has 125k on it. What say you?

Mar 13, 2015 | 01:16 AM

rjwz28

Safety Car

Joined: Sep 2007

Posts: 4,168

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From: Sunniest city on Earth

Quote:

Originally Posted by Tom400CFI

People mostly replace valvesprings on here because they have years with high rates of failure (02-03) or because they have a high-lift cam... Since you have neither, that's your call

If it makes you feel safer, go for it

Mar 14, 2015 | 04:37 AM

laurent_zo6

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Joined: Aug 2013

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St. Jude Donor '15-'16-'17-'18-'19-'20-'21-'22

Quote:

Originally Posted by Tom400CFI

My 2002 Z had low mileage when I bought it but it was in the troublesome time frame so I replaced the valve springs for peace of mind.

Mar 14, 2015 | 10:07 AM

Brock63

Instructor

Joined: Dec 2012

Posts: 229

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From: Charleston South Carolina

Replaced mine as PM....20k miles with the stock blue GM valve springs which are almost impossible to find now. If it had taken just a bit longer I would have gone with Comp springs as recommended by Lingenfelter.

Mar 14, 2015 | 10:27 AM

Tom400CFI

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From: Park City Utah

Thanks for the replies. I wasn't aware that there was a "problem timeframe" for those. I'd guess that since ours is an '05 it is after that time frame.

Mar 14, 2015 | 04:35 PM

Freshbake

Advanced

Joined: Jul 2014

Posts: 75

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From: Gainesville VA

I've got an 02 and after reading all the horror stories on the valvespring failures, I replaced them immediately at 30k miles. The stockers looked fine but I didn't want to take any chances.

Mar 14, 2015 | 05:05 PM

danieloneil01

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Joined: Apr 2011

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From: Tulsa Ok

If you're bored then go for it. I went with BTR springs that are stock replacements.

Mar 14, 2015 | 06:02 PM

LT1driver

Le Mans Master

Joined: Oct 2000

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From: Texas-out west

mine replaced at 16k if I remember correct......74k on it now. personally would not go with anything from comp cams, just my opinion.

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Mar 15, 2015 | 09:22 AM

Dan H.

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From: Bushkill Twp. PA

St. Jude Donor '17

My vin is right in the middle of the bad range. Replaced them at 17k miles. My engine is stock, but I track my car.

Mar 16, 2015 | 12:24 AM

#10

ZeeOSix

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Joined: Mar 2002

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From: PNW

Quote:

Originally Posted by Tom400CFI

Thanks for the replies. I wasn't aware that there was a "problem timeframe" for those. I'd guess that since ours is an '05 it is after that time frame.

Read this thread ... it's a sticky thread at the top of this forum. A 2005 LS6 should be very low risk as GM changed the valve springs around 2004 I believe.

https://www.corvetteforum.com/forums...-failures.html